Snow blower attachment for road grader wings



R. M. ULRICH 2,744,341

sNOw BLOWER ATTACHMENT FOR ROAO ORAOER WINGS May 8, 1956 3 Sheets-Sheet l Filed Deo. 8, 1952 May 8, 1956 R. M. ULRICH 2,744,341

SNOW BLOWER ATTACHMENT FOR ROAD GRADER WINGS Filed Dec. 8, 1952 5 Sheets-Sheet 2 May 8, 1956 R. M. ULRICH 2,744,341

SNOW BLOWER ATTACHMENT FOR ROAD GRADER WINGS Filed Dec. 8, 1952 3 Sheets-Sheet 3 l .'l l

SNOW BLOWER ATTACHMENT FOR ROAD GRADER WINGS Raymond M. Ulrich, Roanoke, Ill., assigner to Ullrich Foundation, Inc., a corporation of Delaware Application December 8, 1952, Serial No. 324,648,v

2 Claims. (Cl. 375-473) IThe .present invention relates to an attachment for .leveling wings of road patrols for snow disposal.

lt has been common to use self-powered road graders In the past rotary snow plows have been used for Such equipment, however, is rather' heavy snowfalls. expensive and is justified only where heavy snowfalls yare rather common. In areas where a heavy snowfall is only occasional it would be desirable to have equipment which would not involve as much in the way of capital investment. In accordance with the present invention it is proposed to provide a relatively economical attachment for converting the usual leveling wing of a road grader into one which will discharge with force the snow beyond the end of the wing.

It, therefore, is an object of the present invention to provide an improved blower attachment for leveling wings of road graders.

It is a further object of the present invention to pro` vide an improved blower attachment for road grader leveling wings for snow removal which tends to minimize the strain and wear on the universal joint of the drive shaft. l

Other and further objects of the present invention subsequentlyr will become apparent by reference to the following description taken in conjunction with the accompanying drawings wherein:

Figure l is a perspective view of the invention applied to the leveling wing of a road grader;

Figure 2 is a detailed view of the invention shownfin Figure 1;.

Figure 3 is a detailed view of the assembly in the leveling wing as seen in the direction of the arrows along the line 3--3 of Figure 2;

. Figure 4 is a cross-sectional view of a pivotal mounting seen in the direction of the arrows along the line 4-4 of Figure 2; and

Figure 5 is a perspective view of the gear transmission, drive shaft and auxiliary frame.

Referring to the drawings there is shown in Figure l the conventional road grader having a frame 11 carrying at an intermediate point a control cab 12 and at its rear an engine or power plant 13. The frame 11 at its front end is provided with steering wheels, not visible in Figure 1, and at its rear with driving wheels 14. Suspended from beneath the forward portion of the frame 11 is a scraper blade which discharges material for engagement I by a leveling wing 15 which is supported by a cable 16 secured at spaced points along the upper edge of the leveling wing which passes overa pulley 17. The pulley 17 is connected to a cable 1S which passes over a suitable pulley, not visible in Figure 1, to a wrench. The inner United StatesPatent g 2,744,341 Patented May 8, y1956 ICCl lower end of the leveling wing 15 may be raised or lowered by acable 19 which passes over a pulley 21. The wing 15 is prevented from moving rearwardly by a brace 22 which is connected to a transversely arranged bar 23 at the rear of the road grader. At the rear of the power plant 13 there is located a power take-off 24 which supplies power to a shaft 25.

The shaft 25 is connected to a gear box 26 rotatably mounted on the side of the road grader. The gear box 2.6 is connected to a drive shaft 27 to supply power to a fan 28 located at the outer edge of the leveling wing 15. A suitable fan guard 29 is provided and supported from a bearing plate 31. A `telescopic auxiliary frame 32 interconnects the bearing plate 31 with the gear box 26. s

The details of the invention are better shown in Figures 2 through 5. rAs may be seen from Figures 2 and 3 a support mounting is located in the outer edge and end of the leveling wing 15. The mounting comprises a vertical plate 33 supported by an upper gusset plate 34 and a lower gusset plate 35. The upper gusset plate is provided with a pair of hooks 36 which engage the upper edge `of the leveling wing 15. The mounting plate 33 carries a pivoted bearing plate 37 which is providedwith two bearing supports 38 and 39. The bearing supports 38 rand 39 are provided with suitable bearings for supporting a shaft 41 which at 'its outer end supportsV the fan 28. The shaft 41 at its other end i's provided .with a lflange 42 to which is bolted a stub shaft 43-4c`on nected to a universal joint 44. The universal joint is connected to the drive shaft 27 which is telescopic. The other end of the drive shaft 27 is provided with a universal joint 45 which connects to a stub shaft 46 protruding from the gear box 26. The bearing plate 37 is provided with a pivoted member 47 which passes through a suitable aperture in the support plate 33 as illustrated in Figure 4. The aperture 48 in the support plate 33 is reinforced by a boss 49. A suitable cap screw 51 engages the boss 49 and the threaded portion engages a threaded aperture in the bearing member 47 of the plate 37. One edge 52 of the bearing plate 37 is arcuate in shape and passes beneath a guide plate 53 secured by suitable bolts 54 to the inner end portion of the mounting support 33.

The upper edge of the bearing plate 37 is provided with a bracket 55 at right angles thereto for engagement by a lug 56 of one arm of the frame 32. A suitable bolt 57 passes through the bracket 55 and the lug 56. At the lower edge of the bearing plate 37 another bracket 58 is provided for engagement by a lug 59 of the lower portion of the auxiliary frame 32. A bolt 61 passes through the lug 59 and the bracket 58.

As may be seen from Figures 1 and 2 the auxiliary guide frame 32 has a triangular shapedportion formed of angle iron members 63 and 64 connected to a telescopic tubular portion 65. From Figures 2 and 5 it will be noted that the other end of the telescopic tubular portion 65 is connected to a bracket 66 which is secured by a bolt 67 to a protruding end of gear box 26. Bolts 67 pass through suitable apertures 68 in the bracket 66.

From Figure 5 it will be noted that the shaft 25l from the power take-off shown in Figure 1 is connected to a universal joint 69 which in turn is connected to a suitable shaft 71 protruding from the side of the gear box 26. The gear box 26 is supported by a plate 73 which is suitably connected to the side of the motor grader.V VThe plate 73 is provided with two brackets 74 each of which contains a bearing for engaging tubular protrusions or extensions of the gear box 26. One of these extensions 75 is visible in Figure 5 and is connected to the bracket 66.

It now will be apparent to those skilled in the art that the bearing support plate 37 will shift with respect to the support mounting plate 33 whenever the leveling wing 15 is raised or lowered or the angular portion thereof is changed. The auxiliary guide frame 32 brings about movement of bearing plate 37 and also produces a rotary movement of the gear box 26 because the bracket 66 is connected by bolts 67 to the protruding end 75 as was shown in Figure 5. Thus the auxiliary frame 32 tends to maintain in alignment the stub shaft 36 of the gear box 26, the drive shaft 27 and the fan shaft 41. This reduces the Wear and strain on universal joints 44 and 45. Without an arrangement such as this the shaft 27 probably would be at an appreciable angle with respect to the stub shafts 43 and 46. Because of the magnitude of the power and speed required for driving the fan 28 it is desirable to reduce the stresses on the universal joints in order to obtain reliable operation over the greatest possible period of time.

While for the purpose of illustrating and describing the present invention a particular embodiment has been shown in the drawings, it is to be understood that the invention is not to be limited thereby since such variations in the construction are contemplated as may be commensurate with the spirit and scope of the invention set forth in the accompanying claims.

I claim as my invention:

1. The combination for a road grader having a leveling wing comprising a support mounting adapted to be secured to the upper outer corner of the wing, said support mounting having a at vertical surface, a bearing base rotatably carried by the flat surface of said mounting, a shaft carried by said bearing base, a fan mounted on one end of said shaft, a transmission gear box rotatably mounted in a frame adapted to be secured to the road grader, a shaft interconnecting said gear box with said first shaft, and a generally triangular guide frame connected between two spaced points on the bearing base and a point on the gear box to cause rotation of said gear box and of said base whenever the position of the leveling wing is changed.

2. The combination for a road grader having a leveling wing comprising a support mounting adapted to be secured to the upper outer corner of the wing, said support mounting having a at vertical surface, a bearing base rotatably carried by a horizontal pivot on said mounting perpendicular to said surface, a shaft carried by said bearing base, a fan mounted on one end of said shaft, a transmission gear box rotatably mounted in a frame adapted to be secured to the road grader, a shaft interconnecting said gear box with said tirst shaft, a generally triangular guide frame arranged parallel to said shaft and connected between two points on said bearing base and the gear box to cause rotation of said box and of said base whenever the position of the leveling wing is changed.

References Cited inthe tile of this patent UNITED STATES PATENTS 2,199,723 Garland et al. May 7, 1940 2,241,252 Garland et al May 6, 1941 2,404,287 Greer July 16, 1946 OTHER REFERENCES The Domor Snow Blower, published before April 11, 1951, by Ulrich Products Corp., Roanoke, Ill., 2 pages. 

